I have a global variable in JavaScript (actually a window property, but I don’t think it matters) which was already populated by a previous script, but I don’t want another script that will run later to see its value or that it was even defined. I’ve put some_var = undefined and it works for the … Read more
Before installing gnuplot, I set the environment variable GNUPLOT_DRIVER_DIR = /home/gnuplot/build/src. During the installation, something went wrong. I want to remove the GNUPLOT_DRIVER_DIR environment variable. How can I achieve it? 5 unset is the command you’re looking for. unset GNUPLOT_DRIVER_DIR
Is there an easy way to delete an element from an array using PHP, such that foreach ($array) no longer includes that element? I thought that setting it to null would do it, but apparently it does not work. 2 26 There are different ways to delete an array element, where some are more useful … Read more
Is there a one-line way of deleting a key from a dictionary without raising a KeyError? if ‘key’ in my_dict: del my_dict[‘key’] 1 15
